Electromagnetic relay

Abstract

An electromagnetic relay includes a casing, an electromagnet installed in the casing, a movable armature installed in the casing and disposed on a side of the electromagnet, a movable contact module installed in the casing, connected to the movable armature, and having first and second contact plates, and a fixed contact module partially disposed inside and outside the casing. The first contact plate has first and second movable contacts, the second contact plate has third and fourth movable contacts. The fixed contact module has first to fourth terminal plates, and the parts of the first to fourth terminal plates disposed in the casing having first to fourth fixed contacts. The movable contact module is driven by the movable armature through an electromagnetic effect of the electromagnet to define whether the first to fourth movable contacts and the corresponding first to fourth fixed contacts are in contact or non-contact status, respectively.

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